Pump Terminology

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Useful Pump Terminology and Information

Transfer Pump – designed for movement of water from one source or location to another.

Trash Pump – for moving water or slurry with debris in solution, for example stones, gravel, slurry, shells and so on.

Diaphragm Pump – for pumping of liquids where the pump may run dry, without damage to the pump.

Chemical Pump – for pumping chemicals, diesel fuels and so on.

Fire Fighter Pump – higher pressure pumps for greater head of pressure or for portable fire fighter units.

Suction Pump – is the vertical distance between the surface of the water and the water inlet point on the pump.

Discharge Pump – is the vertical distance from the pump outlet to the surface of the water at its discharge point.

Total Head – is suction head plus discharge head.

Output (maximum) – the maximum discharged output of water (this is affected by length of hoses, total head, size of hoses).


Helpful Tips When Using Pumps

• When you purchase a pump, it is important to match the size of the pump to the size of the job intended, with the size of the hosing. For example, a 2" pump is unable to run with 1" hosing.

• To reduce or prevent contaminated material from entering a pump, a strainer, filter or nylon stocking over the end of the pump hose inlet works well.

• It is important to never run a pump dry of water, as this can damage or ruin the pump housing/impellor.

For any other enquiries or information, we encourage you to contact us at or phone 0800 806 608